16 results

• ExplainedWhat is optogenetics? Think of it as a remote control for selected neurons.Optogenetics combines genes and light to control selected cells, especially neurons, with unusual precision. It lets researchers test what specific brain circuits actually do rather than only watching them become active.
• ExplainedTrillions of particles pass through you. Almost none notice you are there.Neutrinos are tiny, electrically neutral particles that interact so weakly with matter that they can pass through planets. That strange property makes them difficult to detect and unusually valuable for understanding the Sun, stars and extreme cosmic events.
• ExplainedWhat does the 1.5°C climate limit actually mean?The 1.5°C target is not a temperature any single day or country must stay below. It refers to long-term global average warming above the pre-industrial climate. Crossing it temporarily and staying above it permanently are different problems.
• ExplainedWhat is chirality? Start with your hands, then shrink the idea to a molecule.Chiral molecules come in mirror-image forms that cannot be perfectly superimposed, much like left and right hands. That simple geometric property helps explain why smells, enzymes and medicines can respond differently to molecules with the same formula.
• ExplainedHow can a medicine change what supermarkets sell?GLP-1 medicines reduce appetite and food intake for many users. At population scale, that can alter portion sizes, snacking frequency and the types of foods companies choose to develop, even though the medicines are not food products themselves.
• CuriousTwo thousand ordinary people are helping restore a 240-million-year-old predator.A nearly six-metre Mastodonsaurus skeleton is being restored in a glass-walled laboratory in Warsaw with help from more than 2,000 trained volunteers. The project turns fossil preparation into public science without pretending the work is easy.
• ExplainedOne AI search can secretly become ten searches. That is query fan-out.AI search systems can break one complicated question into several related searches, retrieve evidence for each and then synthesize the result. Google calls this query fan-out, and it changes how content can be discovered.
• PeopleA question about algae ended up giving scientists a light switch for the brain.Peter Hegemann, Georg Nagel and Karl Deisseroth won the 2026 Nobel Prize in Physiology or Medicine for discoveries that made optogenetics possible: using light-sensitive proteins to control selected nerve cells.
• CuriousYou do not have a lizard brain.The phrase is everywhere: the rational human brain supposedly sits on top of an ancient reptile brain that controls fear and instinct. It is memorable, intuitive and scientifically misleading.
• ExplainedAI Overviews and AI Mode look similar. They are not the same thing.Google now blends AI answers into Search in more than one way. AI Overviews are selective summaries inside classic results. AI Mode is a deeper, conversational search experience built for follow-ups, comparisons and multi-step questions.
• ExplainedWhy do AI data centers use so much electricity?AI computing concentrates thousands of power-hungry chips in facilities that run continuously. The electricity demand comes from computation, memory, networking, cooling and the simple fact that useful AI services have to answer requests all day.
• ExplainedCarbon dioxide gets the attention. Faster climate wins may come from the pollutants beside it.Methane, black carbon, ground-level ozone, nitrous oxide and high-warming refrigerants can have an outsized effect on near-term warming. Cutting them does not replace CO₂ reductions, but it can slow warming faster.
• CuriousMars has a blue sunrise and cliffs scientists have waited years to reach.NASA’s Curiosity rover has photographed wind-carved cliffs called yardangs in unusually vivid morning light. The image is beautiful, but the geology is the more interesting story: these rocks may preserve a missing chapter in Mount Sharp’s history.
• ExplainedCountries keep emergency oil underground for moments exactly like this.The IEA is discussing another coordinated release of oil and diesel stocks as energy markets face supply disruptions. Strategic reserves exist to buy time during severe shortages, not to make fuel permanently cheap.
• ExplainedWhat is AI search? It is not just Google with a chatbot on top.AI search combines retrieval, ranking and language models to produce an answer instead of only a list of links. The useful way to understand it is to follow what happens between your question, the sources and the final response.
• ExplainedAI used to answer. Now it can act. That changes the risk.The FTC has opened an investigation into OpenAI, Anthropic and other AI companies over possible consumer risks. The important shift is not simply that models are becoming smarter. It is that some systems can now take actions on a user’s behalf.